(automotive) An automobile which is not available for retail sale and which is usually only a mock-up having limited functionality, but which may be displayed at auto shows to represent design ideas under consideration for future vehicles.

(US) A railroad car containing two or more compartments used for different purposes.

(quarrying) A car which carries a drilling machine so arranged as to drill a line of holes.

A railroad car containing its own steam power or locomotive.

(US, slang, obsolete) a cantina wagon located on a wagon or railcar at a lumber camp

A watertight boat or box, travelling on a line from a wrecked vessel to the shore, and used to haul people through the waves.

plural of car-booter

(US, colloquial) The crime of breaking into an automobile.

plural of car clout

A car that is or can be rented, usually for a short period, from a car rental company.